Download USER'S GUIDE

USER’S GUIDE
Mini Bluetooth DBT-268
Sintrade AG
Kriesbachstrasse 30
CH-8600 Dübendorf
www.sintrade.ch
[email protected]
DBT-268 Bluetooth GPS Receiver User’s Guide
Contents
1. Introduction ………………………………………………..…………. 2
1.1 Overview …………………………………………………………… …2
1.2 Features
……………………………………………………………..… 2
1.3 Electrical Characteristics
……………………………………………. 3
2. Hardware ……………………………………………………………… 4
2.1 Dimension
……………………………………………………………. 4
2.2 Packing List
…………………………………………………..……… 4
2.3 Description ……………………………………………………...…..… 4
3. Operation
……………………………………………………………… 7
3.1 Getting Start
…………………………………………………………. 7
3.2 GPS Viewer for Testing
3.3 Function
3.4 Navigation
4. Warranty
………..…………………………………… 8
…………………………………………………………… 10
………………………………………………………….. 11
………………………………………………….………… 11
5. Troubleshooting ………………………………………………….……12
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DBT-268 Bluetooth GPS Receiver User’s Guide
1. Introduction
1.1 Overview
The DBT-268 Bluetooth GPS receiver incorporates a wireless Bluetooth radio module, a high
performance SiRF StarIII GPS chipset, and a rechargeable battery in a compact design. The
SiRF StarIII chipset is with extremely high sensitivity for GPS signal acquisition and tracking.
This Bluetooth GPS receiver allows you to receive GPS data on mobile hand-held devices.
By sending the GPS data wirelessly, you may place this receiver on a position with best
signal reception without the constraint of annoying wires. The receiver is equipped with
portable, rechargeable, with removable battery, just like a mobile phone. The only
requirement is your corresponding hand-held device is also with the Bluetooth connection
capability. The receiver is positioning for broad applications such as vehicle navigation,
mapping, surveying, security, agriculture…, etc. Only a clear view of sky and a battery
power are necessary to the unit. With its low power consumption, the receiver tracks up to
20 satellites at a time while offering fast time-to-first-fix (TTFF), reacquires satellite signals
in 100 milliseconds (averaged) and updates position data every second.
1.2 Features
The DBT-268 provides a host of features that make it easy for system integration and
convenient for users using PDA, Notebook PC with Bluetooth device.
1.
2.
With SiRF StarIII high sensitivity and low power consumption chipset.
20 parallel satellite-tracking channels for fast acquisition and reacquisition
3.
4.
5.
High speed signal acquisition using 200,000 time/frequency search channels.
Built-in WAAS/EGNOS demodulator without additional hardware.
With the highly sensitive software to get the fast acquisition and reacquisition in the
urban, canyon and foliage environments.
Equipped with 1200 mAh Li-ion rechargeable battery for long operating hours.
Over temperature protection for the battery.
Compatible with Bluetooth devices with Serial Port Profile (SPP).
With an internal built-in antenna, and also provides a connector for accessing external
active antenna.
Three LEDs show Bluetooth, GPS, and battery status.
Supports standard NMEA-0183 data protocol and SiRF binary code at 38400 baud rate.
Built-in rechargeable battery for memory and RTC backup and for fast TTFF.
Flash-based program memory, new software revisions upgradeable through serial
interface.
Compact, sleek, and lightweight enclosure design.
6.
7.
8.
9.
10.
11.
12.
13.
14.
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DBT-268 Bluetooth GPS Receiver User’s Guide
1.3 Electrical Characteristics
General
Frequency
C/A code
Channels
Antenna
L1, 1575.42 MHz
1.023 MHz chip rate
20 channels all-in-view tracking
internal
Sensitivity
Tracking
-159 dBm typical
Accuracy
Position
Velocity
Time
Normal: 5~25 meters CEP without SA
Enable EGNOS or WAAS:
Position < 2.2 meters, horizontal 95% of time
< 5 meters, vertical 95% of time
0.1 meters/second
1 microsecond synchronized to GPS time
Datum
Default
WGS-84
Limitation
Altitude
Velocity
Acceleration
Jerk
< 18,000 meters (60,000 feet)
< 515 meters/sec (1000 knots)
<4G
20 meters/sec max.
Acquisition Rate
Hot start
Warm start
Cold start
Re-acquisition
< 1 sec, averaged (with ephemeris and almanac valid)
< 38 sec, averaged (with ephemeris but not almanac)
< 42 sec, averaged (neither ephemeris nor almanac)
0.1 sec. (interruption recovery time)
GPS protocol
Protocol message
Default NMEA
NMEA-0183
GGA, GSA, GSV, RMC, 38400 baud rate, (VTG, GLL, and
RMS optional)
8 bits data, 1 stop bit, no parity.
Bluetooth Characteristics
BT Compliant
RF Tx Power
Receiver sensitivity
Communication distance
Communication profile
Power Consumption
Main power input
Main power input
Operation Current
Version1.1
Class 2 (4 dBm max)
-80 dBm with BER<0.1%
10 meter typically
Serial Port Profile (SPP)
5V DC input.
3.3 ±5% VDC from internal Lithium-ion battery pack
75~85 mA total typical in normal mode
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DBT-268 Bluetooth GPS Receiver User’s Guide
Battery
Source
Charging time
Operation time
Rechargeable and removable 1200 mAh Lithium-Ion
battery with 5V DC input charging circuit
Full charge 2.5 hours typical
10 hours after fully charged in continuous tracking mode
Environmental Characteristics
Operating temperature range
Storage temperature range
Charging temperature range
Operating humidity：
-10 oC to +60 oC (un-charging condition)
-20 oC to +85 oC
0 oC to +45 oC
5% to 95%, no condensing
2. Hardware
2.1 Dimension
The DBT-268 Bluetooth GPS receiver is with the dimension 75 mm (L) x 44 mm (W) x 20.7
mm (H) and the weight is less than 75 grams.
2.2 Packing List
Your DBT-268 package includes following items.
contact your local dealer or distributor.
1,
2,
3,
4,
5,
6,
If any of these items is missing, please
One DBT-268 Wireless Bluetooth GPS receiver.
One Lithium-ion 1200 mAh rechargeable battery.
One set of travel/car charger.
One Quick Installation Guide.
One tool CD (with user’s manual inside).
One warranty card.
2.3 Description
1,
Body of the Bluetooth GPS unit is as shown in the figure.
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DBT-268 Bluetooth GPS Receiver User’s Guide
There are three LED windows on the front cover to indicate the GPS, Bluetooth and
battery status. Detailed LED indications are described in next paragraph. The battery
on/off switch is located on the top side of the enclosure while the MMCX connector for
external antenna is on the broadside. The mini USB port for battery charge is also on
the top side of the body.
2,
LED status
Bluetooth
GPS
Battery
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DBT-268 Bluetooth GPS Receiver User’s Guide
Symbol
Color
Blue
State
Twinkling
Indication
3 sec period
Standby Mode
0.2 sec period
Pairable Mode
1 sec period
Active link
Stay on
Red
Twinkling
Green
Red
Initiating Process
1 sec period
Twinkling
Receiving data
Recharge suspended
Stay on
In charging
Twinkling
Battery low
Off
Full/ or not in charge
** Unplug the power plug and wait for a moment to resume charging.
3,
Mini USB port for charging
4,
MMCX connector for external antenna
Mini USB port
MMCX connector
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3. Operation
3.1 Getting Start
Step 1: Battery Installation
(a) Slide the power switch to “off” position.
(b) Press the “PUSH” button then slide the bottom cover off.
(c) Insert the Li-ion battery into the compartment. Note the orientation of the battery.
(d) Slide the bottom cover back to locked condition.
Battery
Bottom cover
Push button
Step 2: Charge
Please charge the battery to full capacity when first time to use. Connect the attached
adaptor cord to the mini USB jack (Please note that this port is for charge purpose only, not
for data link), as shown in the following figure.
The battery indication is with dual-color LEDs. The green LED will be on until charge
completes. The LED indication for the battery status is described in the following.
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DBT-268 Bluetooth GPS Receiver User’s Guide
Battery low ----------------------------------------------------------------- Red LED flashing
Battery in charging -------------------------------------------------------- Green LED steady on
Battery charging suspended (protection when
charge timer over or battery overheat) ----------------- Green LED flashing
Charge completes or battery in normal capacity ---------------------- both LEDs off
Step 3: GPS acquisition
Turn the power switch “on.” The slide switch is on the top side of the body. Once the
power is turned on, both the Bluetooth and GPS indication LEDs start to flash.
Power Switch
Take the BT GPS to places with clear view of the sky. The Red LED indicates the status.
(a) LED steady on when power is connected and for the initial acquisition process;
(b) LED flashes at 1 second period when the receiver outputs position fix data.
Step 4: Wireless Link
Turn on the host device, a PDA or a NB with Bluetooth function. Then execute Bluetooth
manager program to perform “search” and “pair” procedures. The default PIN code is
“0000” for host devices to access this BT GPS unit (in paired mode).
The Blue LED indicates following Bluetooth radio status.
(a) LED flashes at 3 seconds interval for standby mode;
(b) LED flashes at 0.2 second interval for pairable mode;
(c) LED flashes at 1 second interval if there is an active RF link.
3.2 GPS Viewer for Testing
Install a GPS viewer program to host device. You may check the status of the GPS receiver
whenever you like to.
(a) Open GpsViewer on your PPC .
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DBT-268 Bluetooth GPS Receiver User’s Guide
(b) The following window is shown after executing:
(c) Setup Baudrate to 38400，then push “SCAN”to scan“COM” port. Select COM port, then
push“OPEN GPS”.
(d) Select “GPS status” to show the satellite diagram like below.
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DBT-268 Bluetooth GPS Receiver User’s Guide
3.3 Function
As soon as the power on, the DBT-268 BT GPS receiver begins the process of satellite
acquisition, tracking, and Bluetooth radio connection. Under normal circumstances, it takes
around 42 seconds (averaged) to achieve a position fix at the first time, 38 seconds (averaged)
if ephemeris data is known. After a position fix has been calculated, information about
valid position, velocity, and time is transmitted over the output channel. The DBT-268
Bluetooth GPS receiver utilizes initial data, such as last stored position, date, time and
satellite orbital data, to achieve maximum acquisition performance.
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DBT-268 Bluetooth GPS Receiver User’s Guide
3.4 Navigation
After the acquisition process is complete, the DBT-268 Bluetooth GPS receiver sends valid
navigation information over output channels. These data include:
1) Latitude/longitude/altitude
2) Velocity
3) Date/time
4) Error estimates
5) Satellite and receiver status
4. Warranty
The GPS smart receiver is warranted to be free from defects in material and functions for 1
year from the date of purchase. Any failure of this product within this period under normal
conditions will be replaced at no charge to the customers.
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DBT-268 Bluetooth GPS Receiver User’s Guide
5. Troubleshooting
Problems
No GPS position output
but timer is running
Reasons
Weak or no GPS signal
received at the place of
DBT-268.
Wireless connection fail
Bluetooth function unstable
Can not turn the COM
port on
DBT-268 inappropriately
installed or other device is
using the same COM port
Host device can not find
DBT-268
Poor connection
No Signal
Host device may enter a
power saving mode and close
the COM port if no actions
taken on the device for a
moment.
Weak or no GPS signal when
using DBT-268 indoor
Methods
1, Go outdoors; or
2, Go to a place without building
or foliage blocking; or
3, Connect an external antenna
located at an open space to your
DBT-268.
1, Power on/off DBT-268; or
2, Re-start Host device and
re-install Bluetooth software.
1, Stop other device that is being
used; or
2, Re-install DBT-268
appropriately.
1, Re-start Host device and
re-install Bluetooth software; or
2, Power on/off DBT-268.
Close the application and
execute it again to reopen the
COM port.
Connect an external antenna to
your DBT-268.
Sintrade AG
Kriesbachstrasse 30
CH-8600 Dübendorf
www.sintrade.ch
[email protected]
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